Holder for heavy shades.



W. P. OARTWRIGHT, DECD.

M. GAETWEIQHT. EXEOUTRIX.

HOLDER FOR HEAVY SHADES. v APPLICATION FILED 0017.6, 1909.

Patented 0st. 21, 1913.

Inventor: William F. Cartw ightdeceased. martha Cartwrnght, executrix Her fittorneg.

WILLIA -r. CARTWRIGI-IT, ononasnn, LATE or SCHENECTADY, new YonK, BY

MARTHA canrwnmn r, nxncurnrx OF SAID WILLIAM P. CARTWRIGHT, AS

sreiion ro GENERAL ELECTRIC COMPANY, A ooRPonA'rmN OF NEW YORK.

HOLDER FOB, HEAVY SHADES.

Specification of Letters Patent.

Application filed October 6, 1909. Serial No. 521,380.

- Improvemcutsin Holders for Heavy Shades;

and that I, MARTHA CARTWRIGHT, executrix of the estate of the said WILLIAM P. Cluirwnlcnr, do hereby declare, to the best of my knowledge and belief, that the following specification, taken in connection with the accompanying drawing, forming a part of the same, is a clear, true, and complete disclosure of said invention.

This invention relates to incandescent electric lamps, and its object is to provide an improved holder for the heavy glass or porcelain shades which are now used with pendcnt high-powered lam s. The old method of supporting the sha c has been to attach a shade holder to the shell of the lamp socket near its lower end so as not to -i nterthrows the entire weight of the shade and its holder upon the fastenings which secure the shell to the-cap. As these fastenings are usually small and light, they are not suit-able for supporting the large and heavy shades which are now coming into use, and hence the present invention aims to meet this diiiiculty by furnishing a yoke straddling the cap and having legs extending down the sides of the shell and attached to the shadeholder, whereby the weight of the shade is thrown upon the cap instead of upon the shell. p

Moreover, the invention comprises novel means for attaching the shade to the holder, consisting of a loose wire clamp sprung into the bell of the holder and having outwardly t-urned ends engaging withnotches -in said bell, so that said clamp can be locked after it has been contracted upon the neck Of'the shade. The clamp is loosely supported in the hell by its projecting ends and by loop projecting through slots in said bell In the accompanying drawing, Figure 1 is a side elevation, artly in section, of a shade holder embodying the invention; Fig. 2 is a bottomplan view, partly in section, and Fig. 3 is a perspective .view of the yoke with its parts separated.

The lamp socket shown is of the usual constructibmhaving a cap 1 to which is secured the shell 2. The shade holder 3 is spun out of sheet metal, having a flange 4: which surrounds and preferably fits snugly ,on the lower endjof the shell 2, preferably abut-ting against a bead 5 thereon; The holder is supported by a yoke, which comprises a collarfresting onitop of'the cap 1 and having two depending legs whose lower ends are attached to the holder. For convenience of manufacture, theyoke is p'referably made in two parts, each comprising one half of the circular collar 6 and one of the Patented Oct. at, iota,

legs 7. These parts are punched from sheet metal, one end of each collar portion having a hook 8 and the other end an eye 9, so that'the two portions can be readily fastened together by engaging each hook with the eye in the other portion. The collar is shaped to lie smooth on the cap, and the legs maybe bent irregularl toffi t the outside of the cap and shell; he end of each leg has an outwardly-bent foot 10 in which is a screw-threaded hole to receive a screw 11 which fastens the leg to the shoulder 12 of the shade holder. To facilitate the attachment and removal of the holder, the screwsll are passed through keyhole apertures 13 in the shoulder 12. This permits the holder to be engaged and disengagedb'y a bayonet-joint movement,-with0ut disturbing the yoke and the screws. the socket has a long shell, spacing collars 14, surrounding the screws 11, may be inserted be tween the feet 10 and the shoulder 12.

Running around the inside of the bell 15 of the shade holder is a resilient clamping wire 16, which has one or more loops 17 projecting out through slots-18 in said bell. The wire is loose, that is to say, itlis not attached to thebell at any point. Both ends 19 of the wire are free and are bent outwardly and pass, respectively, through the slots 20. The lower edge-of each slot is provided with one or more teeth 21 with toward each other and sprung in between the teeth 21, .as shown in Fig. 1, end in dotted lines in Fig. 2. This contracts the clamp upon the neck of the shade, Whose Weight is supported by the loop 17 and the ends 19 resting in their slo-tsl8 and 20. The shade can 1' aleased by disengaging the ends 19 from the teeth 21 and aiiowmg the clamp to spring open.

n accordance With the provisions of the patent statutes, 1 have described the principle of operation of the invention, together with the apparatus which represent the best embodiment thereof; but

I desire to have it understood that the apparatus shown is only illustrative, and that the invention can be carried out by other means.

i What is claimed as the invention of the descent lamp socket, comprising two poo tions each having a half collar provided at one end with a hook and at the other end with an eye, the hoohsof one haltcollar adapted to engage the eye of the other half collar, anda leg depending from each of All) said halt collars and-provided with a thread- 7 ed opening.

3. The combination with an incandescent lamp socket of a shade holder engaging the lower end thereof, and-a yoke having a col.-

larstraddling the cap of said socket and provided w th legs extending down the sides Qantas off this patient may be obtained for five \lnovv consider to of said socket said holder.. I

i. 'lhe comhination with an incandescent lamp socket, 0:? a yoke supported on the cap of said socket and. having legs extending down the sides there-of, and a shade holder seated upon the lower end of said socket and detachahly secured to said yoke.

5. The comhii'iation with an incandescent lamp socket, of a yoke supported on the cap of said socket and having legs extending and adjustahly attached to down the sides thereof and provid ed attheir lower ends with longitudinalscrews, and a shade holder detachabl T secured to said screws by bayonet joints. v

6. The combination With an incandescent lamp socket of a yoke supported on the cap of said socket and having legs extending down the sides thereof and bent at their lower ends, screws in the bent lower ends of said legs. and. a shade-holder seated upon the lower 'e ndo't said socket and having keyhole a ei'tares adapted to engage with said screws. I

7. A shade holder for incandescent lamp sockets comprising a bell to receive the upper end of the shade and provided with slots, a loose open clamping ring of resilient WlTB having loops projecting through some of said slots, and having outwardly extending ends engaging other slots, and a pluralityof teeth in said last-named slotsto lock said ends independently,

In Witness whereof l have hereunto set my hand this 25th day of September, 1909 MARTHA GARTWRIGHT, Execut i iw 0f the estate of l'ViliiamP. Gar? wfight. k l Vitnesses ETHEL MA -crosses, BENJAMIN B l L- ;MM--.m

cents each, to the @ommissiosex' ot Estonia, Washington, 35. B 

